OBD Guide
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P3035

Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit

P3035 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit. Common causes: control circuit wiring problems, hybrid battery module malfunction. Estimated repair cost: $56–222.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–222 (est.)

Symptoms

  • Check Engine light comes on
  • Hybrid system power reduction
  • The car goes into emergency mode
  • Unstable operation of the hybrid system
  • Errors in the battery charging system

Causes

  • Control circuit wiring problems
  • Hybrid battery module malfunction
  • Short circuit in the circuit
  • Poor contact in connectors
  • Module power problems

How to Fix

  1. Check the integrity of wires and connectors
  2. Check control circuit voltage
  3. Test the hybrid battery module
  4. Replace faulty circuit components
  5. Disconnect and reconnect the battery to reset the error

Related codes

P3030P3036P3040

FAQ

What does the P3035 code mean?

P3035 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Interface Control Module 11 5 V Reference Circuit

What causes a P3035 error code?

The most common causes of P3035 include: Control circuit wiring problems; Hybrid battery module malfunction; Short circuit in the circuit; Poor contact in connectors.

How do I fix a P3035 diagnostic trouble code?

To fix P3035: Check the integrity of wires and connectors. Check control circuit voltage. Test the hybrid battery module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P3035?

Do not drive — repair immediately

How much does it cost to fix P3035?

The estimated repair cost for P3035 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

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